Process of making a substitute for whiting.



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Be it known that l, HERMAN B. Krrrnn, a citizen of the United States,residing at Solv'ay, township of Geddes, in the county of Unondaga andState of New York, have invented new and useful Improvements inlP'rocesses of Making a Substitute for mg, oi which the following is aspecification.

My present invention has for its object to provide a whiting or productmade therefrom and a process of making the same whereby the whitin orthe products made therefrom will have lue characteristics of theso-called natural whiting or the products made from the so-callednatural whiting.

Heretofore, and at the present time, English and French chalks areextensively imported into this country and converted by variousprocesses into the so-called natural whitin filler for rubber goods,paper and similar purposes, A product known as artificial whiting isalso manufactutred to some extent, by processes similar to thoseemployed in the conversion of natural chalk into whiting, from limestonerock, precipitated chalk, or other form of calcium arbonate. 'lheseso-called artificial whitings, however, as heretofore manufactured, areinterior to natural whiting in physical character and texture and,hence, will not be used by manufacturers oil difierent products madefrom whiting. For example, it has been found that putty made from orrubber containing natural whitin as a filler possesses greaterelasticity and trength than such products made from or containingartificial whiting According to the present invention, a sub stance isadded to artificial whiting either during or alter it manufacture by theusual processes that will give to the artificial whit ing thecharacteristics ot' true natural whitiug. For example, in the process ofmanulecturing whiting from precipitated chalk,

limestone or other form of calcium, such eulostance i added preferablyduring the grind-- thereof, while in the manufacture of putty fromartificial whiting, such substances may he incorporated into the puttydirectly with the linseed or other-oils, as paraiiin oil or the lilre,instead of during the manufacture of the whitin in carrying out theintention, ll incorpo- JPEJB), OF SOLVAY, NEW YORK.

which is employed extensively in the ma ring of putty and paints and asa,

at} A SUBSTITUTE F018, WHITING.

Patented Apr, 2, lot,

rate with the rtificial whiting, either during or after its manufacture,an organic salt or soap. In those cases where the whiting contains vfreealkali or lime, an organic derivatwo is added which will convert thefree alkall or lime Into a alt or soap. lFor example, in such cases, Imay add a small percentage of an organic acid such as oleic acid, tannicacid, higher organic fatty acids, or a phenol, such as carbolic ac1d, oralpha or beta naphthol. l[n.those cases wherethe artificial whitingcontains no free alkali or lime,or is chemicall neutral, a suitablepercentage of free alkali pr-lime may be added to the whiting during itsprocess of grinding, and an or anic acid or a phenol subsequently addedt ereto to convert such free alkali or lime into a salt or soap, or,instead of supplying the free alkali or lime, an organlc ac1 salt orsoap maybe added'to the whiting. In either of these instances, however,a salt or soap in incorporated with the finely ground material.

It is to be understood that the present in 'vention is not limited toprocesses of manu-- facturing the artificial whiting from precipitatedcalcium carbonate or limestone, but may be applied to the'manufacture 0tarti ficial whiting from any other inert material suitable for thepurpose such, for example, as shale, late or soapstone, or any inertrock or earthy materials and which, according to the present invention,will produce an arti ficial whiting having the characteristic of naturalwhiting An artificial whiting manufactured in ac cordanee with thepresent invention is amorphus, as distinguished from the crystal linecharacter of a large percentage of the particles of artificial whitingshereto'loro procurahle on the market, and it possesses thecharacteristics or natural whiting, as heretofore stated,

It claim as my inventiouz--- benzoic aci or any of the l, The hereindescribed method oi making too described irons t mely inorganic ll.

lt in which it is an Itch earthy material. which comprises incorporatingwith such material a srhall percentage of a salt of a higher fatty acid.

3. The herein described improvement in the manufacture of artificialwhiting from calcium carbonate, which comprises incorporating with suchmaterial a small percentage of a salt of oleic acid.

a. The herein described improvement in the manufacture of a filler ofthe character described from finely ground inorganic earthy material,which comprises incorporating with such material, in the presence of analkali, a small percentage of a compound of the higher fatty acidshaving the formula XC00-R, in which X is an alkyl radical and R iseither hydrogen or a metal.

5. The herein described improvement in described from finel themanufacture of a filler of the character described from finel earthymaterial, which comprises incorporating with such material a smallpercentage of a salt of a higher fatty acid.

6. The herein described improvement in the manufacture of a filler ofthe character ground inorganic earthy material, whic comprisesincorporating with such material a small percentage of a salt of oleic.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

HERMAN B. KIPPER. Witnesses:

C. A. BATEMAN, CHAS. S. Hm.

ground inorganic

